2 years ago

What is the value of x?

Mathematics

1 answer:

never [62]2 years ago

8 0

Answer:

Step-by-step explanation:

because 180-90-60 and then you will get the answer

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Write the polynomial in factored form.<br><br> x^3−3x^2−10x

kirill115 [55]

Answer:

x( x − 5 ) ( x + 2 )

Step-by-step explanation:

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Given f(x)=-1/7√16-x^2 find f^-1(x)

Vera_Pavlovna [14]

Answer:

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

Not a function.

Step-by-step explanation:

The given function is;

$f(x)=-\frac{1}{7}\sqrt{16-x^2}$

Let $y=-\frac{1}{7}\sqrt{16-x^2}$

Interchange x and y;

$x=-\frac{1}{7}\sqrt{16-y^2}$

Solve for y;

$-7x=\sqrt{16-y^2}$

Square both sides

$(-7x)^2=(\sqrt{16-y^2})^2$

$49x^2^2=16-y^2$

$49x^2^2-16=y^2$

$y=\pm \sqrt{49x^2-16}$

The inverse is

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

$f^{-1}(x)=\pm \sqrt{49x^2-16}$ is not a function because one x-value maps onto to different y-values.

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grandymaker [24]

Answer: 39 each

Hope this helps!

Have a wonderful day!

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Solve 8.2 w less-than-or-equal-to 29.52. Which of the following must be true about the inequality and the resulting graph? Selec

vladimir1956 [14]

Answer:

A, B, E

Step-by-step explanation:

$8.2w \le 29.52$

Divide both sides by 8.2

$w \le 3.6$

Correct choices:

A. $w \le 3.6$

B. The arrow points left.

E. There is a closed circle at 3.6.

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